Which of the Following Illustrates the Data Lag

question 149

Multiple Choice

Which of the following illustrates the data lag?

• A)The economy turns down on January 8, 2019, but policymakers do not figure this out until April 19, 2019.
• B)Policymakers wait and see what is really going on with the economy.
• C)Policymakers implement policy X on September 12, 2019, but the effects are not felt until six months later.
• D)The data lag is illustrated equally well by a, b, and c.

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Definitions:

Lenz's Law

A principle stating that an induced electromotive force (emf) always generates a current whose magnetic field opposes the original change in magnetic flux.

Left-hand Generator Rule

A rule that predicts the direction of induced current flow in a generator's conductor moving perpendicular to a magnetic field, using the left hand to demonstrate orientation.

Inductors

Electrical components that store energy in a magnetic field when electric current flows through them, typically used in filters and chokes.

Inductance

The property of an electrical conductor that causes it to oppose a change in the current flowing through it, stored in the magnetic field created by the current.